Killstreak

Black Ops Killstreaks / Kill Streak Rewards

Here are all killstreaks in the game. You unlock killstreaks by buying them for ingame credits which are earned by playing multiplayer. It also says how many killstreaks you must have at various killstreaks:

Kills – Killstreak – Price as killstreak costs to unlock (the ones without the price is unlocked from the start)

3 Kills

Spy Plane – $ 0 – Shows enemies on the mini-map. (The same as UAV)

3 Kills

RC XD – $ 1.200 – Remote controlled car strapped with explosives. (It is said that it is difficult to manage, and it is super easy to get several kills with it thankfully)